摘要:
An exemplary technique is provided for communication in a personal area network. The technique includes transmitting, to a personal area network coordinator, joint information of a sensor device indicated by reserved bits and includes a type, a channel access rate, and a latest node buffer occupation rate of the sensor device; receiving, from the personal area network coordinator, information regarding adjusted active duration and duty cycle of the communication of the sensor device; and performing further communication based upon the adjusted active duration and duty cycle. Also, the technique includes receiving, from a sensor device, joint information indicated by reserved bits and includes a type, a channel access rate, and a latest node buffer occupation rate of the sensor device; adjusting an active duration and a duty cycle of the communication of the sensor device; and transmitting information regarding the adjusted active duration and duty cycle to the sensor device.
摘要:
Methods for supporting migration of virtual machines across multiprotocol label switching network and corresponding devices are disclosed. A method for supporting migration of virtual machines across multiprotocol label switching network comprises the steps of: a first label edge router (LER) receiving a migration enablement function (MEF) discovery message from a first virtual machine that wishes to register with the first LER; the first LER updating its own virtual machine binding database to reflect binding of the first virtual machine to the first LER; and the first LER sending a MEF advertisement message to the first virtual machine to indicate that the first LER completes the registration of the first virtual machine. According to this invention, no complex registration hierarchy is needed. Furthermore, the virtual machine has no need to get aware of the registration hierarchy and only a few registration signaling and processes involve the virtual machine.
摘要:
Provided are methods and apparatuses for communication in a personal area network. A method comprises transmitting, to a personal area network coordinator, joint information of a sensor device, wherein the joint information is indicated by reserved bits and includes a type, an overall successful channel access rate, and a latest node buffer occupation rate of the sensor device; receiving, from the personal area network coordinator, information regarding adjusted active duration and duty cycle of the communication of the sensor device, wherein the adjustments of the active duration and duty cycle are determined based upon the joint information; and performing further communication based upon the adjusted active duration and duty cycle. A further method comprises receiving, from a sensor device, joint information which is indicated by reserved bits and includes a type, an overall successful channel access rate, and a latest node buffer occupation rate of the sensor device; adjusting, based upon the joint information, an active duration and a duty cycle of the communication of the sensor device; and transmitting information regarding the adjusted active duration and the duty cycle to the sensor device. With the present invention, multimedia services in low rate and low power wireless sensor networks are supported.
摘要:
According to at least one particular embodiment of the present invention, in an ASM-based RP, when the RP receives a multicast transmission request from a multicast source, it processes said multicast transmission request of the multicast source according to the multicast transmission request and remaining resources available for multicast forwarding in the RP. When using the methods and apparatuses provided in the present invention, by means of reasonable controls on the multicast transmission request conducted by the RP according to its resource situation, the hardware processing loads and the port traffic load of RP can be effectively maintained within an appropriate range, thereby avoiding resource exhaustion, and the disadvantageous impact of new multicast services on the existing services can be also avoided.
摘要:
The present invention proposes a method for controlling the uplink transmission of the multicast IP packet sourced from the UE in field of IP packet transmission in access network. According to the technical solution of the present invention, the access devices receives IP packet from the UE, checks the IP packet and determines whether the IP packet is multicast IP packet that is allowed to be accessed. If the access device determines that the IP packet is multicast IP packet that is allowed to be accessed, then it sends the multicast IP packet in multicast form. Via the present invention, the access device can allow the uplink valid multicast IP packet to pass, preferably, determines and intercepts the malicious attacks via multicast IP packet, so as to ensure the DSL access device's support for mobile IPv4, so as to keep the uninterrupted connection of the service to the user when the user moves between different subnets.
摘要:
The present invention proposes a method for controlling the uplink transmission of the multicast IP packet sourced from the UE in field of IP packet transmission in access network. According to the technical solution of the present invention, the access devices receives IP packet from the UE, checks the IP packet and determines whether the IP packet is multicast IP packet that is allowed to be accessed. If the access device determines that the IP packet is multicast IP packet that is allowed to be accessed, then it sends the multicast IP packet in multicast form. Via the present invention, the access device can allow the uplink valid multicast IP packet to pass, preferably, determines and intercepts the malicious attacks via multicast IP packet, so as to ensure the DSL access device's support for mobile IPv4, so as to keep the uninterrupted connection of the service to the user when the user moves between different subnets.
摘要:
A roaming method for a mobile terminal in a wireless local area network is disclosed. In the method, a target access point (AP) device receives an access request for roaming from the mobile terminal, and a target access controller (AC) obtains mobility information of the mobile terminal in an original extended service set based on the access request, wherein the mobility information include information of an AP device, an AC and a mobile agent server associated with the mobile terminal. Then the target AC determines whether the roaming for the mobile terminal is an inter-IP subnet roaming or an intra-IP subnet roaming based on the obtained mobility information. The target AC performs mobile IP based handover when the roaming is determined as the inter-IP subnet roaming and performs Inter Access Point Protocol based handover when the roaming is determined as the intra-IP subnet roaming.
摘要:
A roaming method for a mobile terminal in a wireless local area network is disclosed. In the method, a target access point (AP) device receives an access request for roaming from the mobile terminal, and a target access controller (AC) obtains mobility information of the mobile terminal in an original extended service set based on the access request, wherein the mobility information include information of an AP device, an AC and a mobile agent server associated with the mobile terminal. Then the target AC determines whether the roaming for the mobile terminal is an inter-IP subnet roaming or an intra-IP subnet roaming based on the obtained mobility information. The target AC performs mobile IP based handover when the roaming is determined as the inter-IP subnet roaming and performs Inter Access Point Protocol based handover when the roaming is determined as the intra-IP subnet roaming.
摘要:
According to at least one particular embodiment of the present invention, in an ASM-based RP, when the RP receives a multicast transmission request from a multicast source, it processes said multicast transmission request of the multicast source according to the multicast transmission request and remaining resources available for multicast forwarding in the RP. When using the methods and apparatuses provided in the present invention, by means of reasonable controls on the multicast transmission request conducted by the RP according to its resource situation, the hardware processing loads and the port traffic load of RP can be effectively maintained within an appropriate range, thereby avoiding resource exhaustion, and the disadvantageous impact of new multicast services on the existing services can be also avoided.
摘要:
With migration of network technology and more and more requirements of user equipment for accessing to Internet, the network security faces more and more severe situation. There is provided a method for distributed security control in communication network system and the device thereof in order to improve security and operatability of network operator. In the method, firstly the network controller establishes a network security control mechanism, which is used for a second network device to check the validity of the data package from the user equipment; secondly, the network controller sends the network security control mechanism to the second network devices; lastly, the second network device checks the validity of the data package from the user equipment according to the network security control mechanism, and discards the data package if the data package is invalid. With the present invention, security and operatability of the communication network may be improved greatly, particularly, the functionality of address anti-spoofing can be implemented in the network with a WLAN architecture in centralized control.